body{
    margin:0;
    padding:0;
}

div{
    display: block;
}

/* 整个页面属性 */
#all{
    height:800px;
    text-align: center;
    display: block;
}

/* 页面上部元素 */
#title{
    width:980px;
    height:100px;
}

/* 标题“登陆”样式 */
.tit{
    width:1120px;
    text-align: center;
    display: block;
    margin-left: auto;
    margin-right: auto;
}
.tit b{
    background: #ddd;
    margin-top: 4px;
    display: inline-block;
    width: 400px;
    height: 1px;
    _overflow: hidden;
    vertical-align: middle;
}
.tit span{
    display: inline-block;
    width: 220px;
    vertical-align: middle;
    text-align: center;
    font-size: 50px;
}

/* 登陆窗口 */
#login{
    position: relative;
    width:1000px;
    height: 300px;
    margin-left: auto;
    margin-right: auto;
}

/* 左登陆窗口 */
#login_left{
    float: left;
    width: 400px;
    height: 250px;
}


/* 中间的分割线 */
.line{
    float: left;
    border-right: 1px solid #dddddd;
    height: 250px;
    margin: 0 auto 0 50%;
    position: absolute;
    top:25px;
}


/* 右登陆窗口 */
#login_right{
    float: right;
    line-height:50px;
    width: 400px;
    height: 250px;
}

ul li{
    list-style-type: none;
}

#username{
    width:300px;
    border: 1px solid #dddddd;
    color: #aaaaaa;
    font-size: 14px;
    padding: 10px;
    border-radius: 4px;
}

#userpwd{
    width:300px;
    border: 1px solid #dddddd;
    color: #aaaaaa;
    font-size: 14px;
    padding: 10px;
    border-radius: 4px;
}

/* 登陆 */
#longin{
    padding:0;
    color: #555;
    display: inline-block;
    height: 38px;
    border: 1px solid #ccc;
    border-radius: 2px;
    width: 150px;
    line-height: 38px;
    font-size: 14px;
    text-align: center;
    cursor: pointer;
    transition: all .3s;
}

#register_btn{
    text-decoration: none;
    color: #555;
    display: inline-block;
    height: 36px;
    border: 1px solid #ccc;
    border-radius: 2px;
    width: 150px;
    line-height: 38px;
    font-size: 14px;
    text-align: center;
    cursor: pointer;
    transition: all .3s;
}